Card No: 12152       Created: 14/08/24    Last edition: 27/03/2026

Name: TSEPINITE-K
Specification: [2], DF
Formula: [Na,H3O]2K2(Ti,Nb)4(Ba,Sr)[Mn,Ca,H2O]1.5[(Si4O12]2(O,OH)4 · 4H2O
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 14.2582 | b = 13.7541 | c = 7.7770 | beta = 116.9000
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1360.20
Number of Atomic Position
per full Unit Cell
:
P/U = 122 Molar Volume, cm3/mol: Vm = 409.65
Number of Reflexes used in
Structure Determination
:

NR = 5804
X-ray density, g/cm3: p = 3.09
R-factor: R = 0.0448MU, 1/cm: µ = 256.253
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 82.954
Theta-Interval for CPDP: T/I = 1-45